Carlo Bonelli

Carlo Cardinal Bonelli dei marchesi di Cassano (1612—27 August 1676), the great-great-grand-nephew of Pope Pius V, was a papal lawyer, diplomat and cardinal of the Roman Catholic Church.

He received his doctorate at law from the University of Perugia and was appointed private chamberlain to Pope Urban VIII. His career in the Roman Curia resulted in appointments as governor of several cities of the Papal States including Rome, then as vice-camerlengo from 15 April 1655 until 18 October 1656, when he was appointed to the titular position of bishop of Corinth. Fortified by the title, he was sent as nuncio extraordinary to Felipe IV of Spain to establish peace among the Christian princes, 27 October 1656. With the Treaty of the Pyrenees signed in 1659, he remained in Madrid as ordinary nuncio until 1664. He was recalled to Rome and made cardinal in the consistory of 14 January 1664.